/**
 * 用户管理模块
 */
const router = require('koa-router')()
const User = require('./../models/userSchema')
const Counter = require('./../models/counterSchema')
const util = require('./../utils/util')
const jwt = require('jsonwebtoken')
const md5 = require('md5')
router.prefix('/users')

// 用户登录
router.post('/login',async (ctx)=>{
  debugger
  try {
    const { userName, userPwd } = ctx.request.body
    /**
     * 返回数据库指定字段,有三种方式
     * 1. 'userId userName userEmail state role deptId roleList'
     * 2. {userId:1,userName:0} 1返回 0不返还
     * 3.select{'userId}
     */
    const res = await User.findOne({
      userName,
      userPwd
    },'userId userName userEmail state role deptId roleList') // 返回那些字段，多个字段用空格
    /*const res = await User.findOne({
      userName,
      userPwd
    },{userId:1,userName:1,_id:0})*/
   /* const res = await User.findOne({
      userName,
      userPwd
    }).select('userId')*/

    const data = res._doc

    console.log('data', data)

    const token = jwt.sign({
      // data:res
      // data:data
      data
    },'imooc',{ expiresIn: '1h' })

    // console.log('token', token)

    if (res) {
      // ctx.body = util.success(res)
      //ctx.body = util.success({...res,token}) //解构
      data.token = token
      ctx.body = util.success(data)
    } else {
      ctx.body = util.fail("账号或密码不正确")
    }
  } catch (error) {
    ctx.body = util.fail(error.msg)
  }
})

// 用户列表
router.get('/list', async (ctx)=>{
  const { userId, userName, state } = ctx.request.query
  const { page,skipIdex } = util.pager(ctx.request.query)
  let params = {}
  if (userId) params.userId = userId
  if (userName) params.userName = userName
  if (state && state != '0') params.state = state
  try {
    // 根据条件查询所有用户列表
    const query = User.find(params, { _id: 0, userPwd: 0 })
    const list = await query.skip(skipIdex).limit(page.pageSize)
    const total = await User.countDocuments(params)

    ctx.body = util.success({
      page: {
        ...page,
        total
      },
      list
    })
  } catch (error) {
    ctx.body = util.fail(`查询异常:${error.stack}`)
  }
})

// 用户删除/批量删除
router.post('/delete', async (ctx) => {
  // 待删除的用户Id数组
  const { userIds } = ctx.request.body
  // User.updateMany({ $or: [{ userId: 10001 }, { userId: 10002 }] })
  const res = await User.updateMany({ userId: { $in: userIds } }, { state: 2 })
  if (res.nModified) {
    ctx.body = util.success(res, `共删除成功${res.nModified}条`)
    return
  }
  ctx.body = util.fail('删除失败')
})

// 用户新增/编辑
router.post('/operate', async (ctx) => {
  const { userId, userName, userEmail, mobile, job, state, roleList, deptId, action } = ctx.request.body;
  if (action == 'add') {
    if (!userName || !userEmail || !deptId) {
      ctx.body = util.fail('参数错误', util.CODE.PARAM_ERROR)
      return;
    }
    const res = await User.findOne({ $or: [{ userName }, { userEmail }] }, '_id userName userEmail')
    if (res) {
      ctx.body = util.fail(`系统监测到有重复的用户，信息如下：${res.userName} - ${res.userEmail}`)
    } else {
      const doc = await Counter.findOneAndUpdate({ _id: 'userId' }, { $inc: { sequence_value: 1 } }, { new: true })
      try {
        const user = new User({
          userId: doc.sequence_value,
          userName,
          userPwd: md5('123456'),
          userEmail,
          role: 1, //默认普通用户
          roleList,
          job,
          state,
          deptId,
          mobile
        })
        user.save();
        // ctx.body = util.success({}, '用户创建成功');
        ctx.body = util.success('', '用户创建成功');
      } catch (error) {
        ctx.body = util.fail(error.stack, '用户创建失败');
      }
    }
  } else {
    if (!deptId) {
      ctx.body = util.fail('部门不能为空', util.CODE.PARAM_ERROR)
      return;
    }
    try {
      const res = await User.findOneAndUpdate({ userId }, { mobile, job, state, roleList, deptId, })
      ctx.body = util.success({}, '更新成功')
    } catch (error) {
      ctx.body = util.fail(error.stack, '更新失败')
    }
  }
})

module.exports = router
